These are supposed to be good lifters. The Strokers forum says they measure close to the OEM lifters.


http://www.summitracing.com/parts/cr...3-12/overview/


Strokers:


"Also, keep in mind that most after market lifters aren't the same diameter as OEM. Lunati microtrol, Comp Cam, some mystery lifter, and Engine tech measure .9036" to .9038". The OEM, Crower Cam savers(Johnson//Hylift w/ a groove in side), and Johnson/Hylfit measure .9044" to .9045". According to the FSM lifter tolerance is .9040" to.9045", lifter bore .9055" to .9065","

 

Wow, I have never seen anything like that, unless the cam lobes look like a cheese grater...I put sealed power lifters in mine about 6 months ago, no issues yet!
I have seen roller lifters fail in a 5.7 hemi that ground the lobes right off...


Good to hear you got it fixed!

 

:: update ::

The problem has returned. I'm pretty sure my cam is eating the new cams again. Also my oil pressure is only getting up to 5-20 psi. This engine is shot.

 

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